wipefs

Wipe filesystem signatures

high risk

interactive breakdown — edit the command and press Explain
$ 
⚠ Risks & cautions
Safer / dry-run alternatives
wipefs -n -a <device>Dry run first
wipefs <device>List signatures read-only
What it does

Lists or erases signatures from block devices.

Common flags
FlagMeaning
-nDry run
-aErase all signatures⚠ Makes the disk look empty.
Examples
wipefs /dev/sdbList signatures (read-only) · explain & risk-check →
wipefs -n -a /dev/sdbDry run · explain & risk-check →
Related
mkfs lsblk
Open the full explainer →More in Disks & Filesystems

Reference text is hand-written and may be incomplete — check man wipefs for your version. Test destructive commands on a non-production system first.